When involved in phase III drug evaluation studies, which responsibilities would the nurse have?

a) Phase III clinical trials involve large groups of human participants and focus on confirming the drug's effectiveness and monitoring for adverse effects. The nurse plays a key role in observing and documenting any side effects experienced by the patients. b) Working with animals is part of preclinical trials, not phase III studies. By the time a drug reaches phase III, it has already undergone animal testing. c) While data collected in phase III trials contribute to determining a drug’s effectiveness, the decision-making is primarily done by researchers and regulatory agencies, not individual nurses. d) Selection of appropriate clients for a drug study is generally determined by researchers and trial coordinators based on inclusion and exclusion criteria, rather than by nurses directly.